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Because the upper case holds crucial information to be measured, it's best to strike the vertical measuring line on the front corner of that plane. CONSTRUCT A VERTICAL SCALE 3. Overall height, 42 in. Height of desktop, 29 in. Use an architect's rule to divide the height into l-in. increments. Height of stretcher, 11 in. o in. 4. No" important dimensions. 2. Draw horizontal lines at the bottom and top of the piece. are planes that recede to a vanishing point in the distance-one to the right and one to the left. A string is a handy tool for finding a vanishing point. Hold down one end of the string with your thumb, pull it taut, and then pivot from that point. Move the string across the photocopy until it lines up with the top and bottom planes of the piece of furniture. The point at which the string aligns with the top and bottom of the piece, as well as with the other horizontal planes in the piece, is the vanishing point. Stick a push pin in that spot. Draw the horizon line- ow draw a horizontal line through the first vanishing point to represent the horizon. The horizon is eye level-the point of view of the photocopy. The line drawn from the first vanishing point will be perpendicular to the vertical lines that describe the sides of the piece of furniture. Find the second vanishing pointOnce the horizon line has been established, finding the next vanishing point is easy because you already know it has to occur at some point along that line. Use Drawings: Kelly J. Dunton 1. Mark the top and bo�om of the piece. Draw horizontal lines outward from where the vertical measuring line intersects with the top and bottom vanishing lines. Draw a vertical measuring line. the string and your thumb to find the second vanishing point, just as you did to find the first one. Place a push pin at that point. Once you have established both vanishing points, draw lines from each one, across the photocopy to define the top and bottom of the image. Use the push pin placed in each vanishing point to serve as a pivot for the straightedge. Maintaining contact with the pin as you swing the straightedge will keep the vanishing lines accurate as you draw. Once you've drawn the vanishing lines around the perimeter of the image, you are ready Mark l·in. increments. Find a face on the architect's rule that divides the overall height of the piece into the same number of increments as its height in inches. You will need to skew the rule to do so. to determine the vertical dimensions of the piece. Scale for the vertical dimensions Establish a venical measuring line on one of the corners of the piece of furniture in the photo. The line should extend beyond the top and bottom of the photo. Draw perpendicular lines off to one side both from the top and bottom of the measuring line that establishes the height of the piece. These two lines will be parallel to each other. Now divide the measuring line into I-in. increments. In this example, the Complete the vertical scale. Use a T-square to draw horizontal lines from each mark back to the vertical measuring line to complete the vertical scale. MAY/JUNE 2004 61